exists and is an alternate of . Since this is regarding statistics I assume you mean lower case sigma (Ï) which, in statistics, is the symbol used for standard deviation, and Ï2 is known as the variance.
The Acceptable Quality Limit, commonly referred to as AQL, is a method widely used to measure a production order sample to find whether or not the entire product order has met the client's specifications. The customer then has the data to make an informed decision to accept or reject the lot.
Definitions. A sample is the group of people who take part in the investigation. The people who take part are referred to as âparticipantsâ. Sampling is the process of selecting participants from the population. The target population is the total group of individuals from which the sample might be drawn.Generalisability refers to the extent to which we can apply the findings of our research to the target population we are interested in.. Systematic Sampling Chooses subjects in a systematic (i.e. orderly / logical) way from the target population, like every nth participant on a list of names. To take a systematic sample, you list all the members of the population, and then decided upon a sample you would like.